Functional Life Testing Of Multimoded Lasers For Digital Communications Applications

B. A. Dean; M. Dixon

doi:10.1117/12.933884

23 July 1982 Functional Life Testing Of Multimoded Lasers For Digital Communications Applications

B. A. Dean, M. Dixon

Proceedings Volume 0328, Laser and Laser Systems Reliability; (1982) https://doi.org/10.1117/12.933884
Event: 1982 Los Angeles Technical Symposium, 1982, Los Angeles, United States

Abstract

We discuss the need for evaluating the performance of a semiconductor laser in terms of the requirements imposed by the system in which it is used. We find that the median life-time for 45 Mb/s optical transmitters, based on the criteria of average power drift and extinction ratio degradation, is on the order of 10⁴ h. This result is well below the demonstrated cw median lifetime of over 10⁵ h for the (AlGa)As multimoded lasers used in the transmitter. The processes leading to the shortened transmitter lifetime are traced to laser degradation. Circuit strategies which compensate for the effects of the aging of the laser are presented.

Citation Download Citation

B. A. Dean and M. Dixon "Functional Life Testing Of Multimoded Lasers For Digital Communications Applications", Proc. SPIE 0328, Laser and Laser Systems Reliability, (23 July 1982); https://doi.org/10.1117/12.933884

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